1.0 link Rainbow Dash Network http://rainbowdash.net/ Bit Shift (bitshift) http://rainbowdash.net/bitshift http://rainbowdash.net/notice/2070370 @<span class="vcard"><a href="http://rainbowdash.net/user/22012" class="url" title="Dat Neu"><span class="fn nickname">neurario</span></a></span> For example, @<span class="vcard"><a href="http://rainbowdash.net/user/6761" class="url" title="Pony"><span class="fn nickname">pony</span></a></span> uses it to send picture posts to the attention of people who've told him they're interested in seeing that type of picture - he just tags them with the types they want, and then @# mentions that tag when posting. It's pretty neat.